alt Hacker NewsThe 4th amendment protects people from unreasonable searches by the government. It does not require businesses to do anything special. There are plenty of great reasons to, and even other legal requirements to, protect and limit information gathered by businesses about individuals, but the 4th isn’t one of them.
It's commonly forgotten that the bill of rights simply restricts the government. For nearly 100 years it didn't even apply to state governments but just the federal government.